U.S. State Data

The U.S. State Data is based on the the Behavioral Risk Factor Surveillance System (BRFSS). The BRFSS is the world’s largest ongoing telephone health survey system, tracking health conditions and risk behaviors in the United States yearly since 1984.
Currently, data are collected monthly in all 50 states, the District of Columbia, Puerto Rico, the U.S. Virgin Islands, and Guam.
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